Physiological strategies contributing to the coexistence of two predatory species of stoneflies: Dinocras cephalotes and Perla bipunctata

Are antioxidant capacity and oxidative damage related to biological and autecological characteristics in aquatic insects?

“…This fact has been previously noted also by Berra et al (2004). In particular, the GPX activity in insects was reported for nymphs of different species of Plecoptera (Sanz et al, 2010(Sanz et al, , 2014. In these studies, the total GPX activity was assayed, including selenium-dependent and selenium-independent isoforms using a organic peroxide (cumene hydroperoxide) as the substrate.…”

“…Both of these species have a intermediate body lipid content. Although these two species differ slightly in their oxidative state due to a possible mechanism of coexistence in the same habitat (Sanz et al, 2014), they are notable for their lower oxidative damage compared with the other studied species.…”

“…To assess the antioxidant capacity, the trolox-equivalent antioxidant capacity (TEAC) (Erel, 2004) and ferricreducing/antioxidant power FRAP (Benzie and Strain, 1996) , as well as a set of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX), glutathione reductase (GR), glutathione S-transferase (GST), and DT-diaphorase (DTD), were measured (Sanz et al, 2014).…”

Trophic ecology of Plecoptera (Insecta): a review

“…These differences have been related to their trophic spectrum and the efficiency of assimilation of certain resources, and may be a factor determining their coexistence. In this respect, other physiological strategies may also play an important role (Sanz et al 2014). On the other hand, environmental conditions, such as temperature or pH, also play an important role in the assimilation efficiencies and feeding of some nymphs (Nebeker 1971;Miyasaka & Gentai-Kato 2009a;Tixier et al 2012), and this has consequences on growth (Sweeney et al 1986).…”